| Author | Bui Hai Nhi |
| Call Number | AIT Thesis no. AE-97-12 |
| Subject(s) | Coffee--Vietnam--Lamdong
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | This study has main objectives to survey the existing processing patterns and the
coffee quality in Vietnamese provinces of Dongnai, Lamdong, Daklak and in a second step to
improve the coffee quality produced by the small holders. On the basis of information collected
during the survey, experiments about the effects of processing on quality were undertaken in
order to determine the more appropriate processes which could be applied to obtain an
optimum of quality. ยท
The survey was conducted in 90 farms located in three regions. Two main processes
are applied to handle the cherries: sun drying of whole cherries and sun drying of partially
pulped cherries. Three kinds of sun drying areas are generally used: cement patio, plastic sheet,
and bare earth patio, from which the latter one is dominant (60% to 72%). Percentage of
farmers using cement patio is very low (23% to 30%). Although physical and chemical
properties of coffee beans are different following the regions, no essential differences in term
of cup quality are observed.
Four processes including dry process (sun drying of cherries), dry process of partially
pulped cherries, wet fermentation process and dry fermentation process were applied to
examine their influence on coffee quality. Wet fermentation process (for 24 hours) was found
to be the best for ripe and over ripe cherries. Sun drying of red cherries on cement patio or
plastic sheet give an acceptable quality. Sun drying of partially pulped cherries could be applied
but the quality was not so good compared with samples processed by wet fermentation. Sun
drying of cherries should be applied to immature cherries only. |
| Year | 1997 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Vincent, Jean Claude ;Athapol Noomhorm; |
| Examination Committee(s) | Jindal, Vined K. ; |
| Scholarship Donor(s) | Swedish International Development Cooperation Agency
(Sida) ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1997 |